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The 90 series use back light and 120 hz and 240 motion picture i domt know about other series
Sorry, there was a problem. Please try again later.The difference is the higher series is a more advanced model and will offer different feature. Please see the link for a side by side comparison of specification for each model, https://www.lg.com/us/compare?bizType=B2C. The NANO 99 is only available in sizes 65", 75" and 86". ^Daphane
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